The Fox stars talked to THR on the red carpet of the film's L.A. premiere.

"Getting lots of rest, stocking my refrigerator up with food and making sure that I have my coffee ready to go in the morning," she tells The Hollywood Reporteron the red carpet for Fox's Glee: The 3D Concert Movie.

But, Dianna Agron revealed that they didn't exactly have a lot of time to learn their dances for the film.

"We had three days to learn the choreography," she told THR on the red carpet. And, luckily we have the most amazing choreographers. Everybody had a double they would take us all and break us off and teach each other our track. We couldn't have learned it in three days had we not that that.